The 1961 Holden FB sits squarely in the early compact sedan era that helped define postwar Australian motoring, with clean styling and straightforward mechanical character that still appeal to restorers and weekend drivers. Tire choice on this car is especially interesting because the 1961 Holden FB is associated with both a 640-13 bias-ply fitment and a 175R13 radial fitment, both on 13-inch rims. That opens the door to a traditional bias-ply look or a radial-sized alternative. For an owner sorting out appearance, road manners, or a restoration-minded presentation, the key is matching the tire to the wheel, the car's current setup, and the intended use.
Which Tire Size Is Right for The 1961 Holden FB
The 1961 Holden FB uses two primary tire sizes, and both fit a 13-inch rim. One is a traditional 640-13 bias-ply size, while the other is a 175R13 radial, so the first decision is whether the car is being kept in its original-style bias-ply format or set up around radial construction. Since the covered sub-model uses both sizes, the real choice is construction, appearance, and wheel compatibility rather than trim-level fitment.
175R13 is a Euro-metric radial size in which 175 refers to nominal section width in millimeters, R identifies radial construction, and 13 is the wheel diameter in inches. On a 1961 Holden FB, this size represents a more modern radial sizing convention while still keeping the 13-inch rim format. It is also the 80-series metric radial equivalent associated with 640-13, which makes it a useful comparison point for owners considering a radial setup. The practical question is whether the car's current wheels and clearances suit radial use as well as the intended driving style.
640-13 is a numeric bias-ply size, with the 640 indicating a nominal section width of about 6.40 inches and the 13 identifying the rim diameter. This is the traditional bias-ply format associated with the 1961 Holden FB and it preserves the earlier tire sizing language many restoration-minded buyers want to see. Available product choice in this size includes BFGoodrich's Silvertown Classic Bias Ply with a wide whitewall presentation. It is the size to evaluate when period-style appearance matters most and the car remains on wheels compatible with bias-ply fitment.
Tire fitment is straightforward here because the covered 1961 Holden FB sub-model is associated with the same two tire-size paths: traditional bias-ply or radial. Checking the exact sub-model still helps confirm that the car has not been altered away from its 13-inch wheel setup.
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1961 Holden FB Base
The 1961 Holden FB Base is associated with both 175R13 radial and 640-13 bias-ply sizing on 13-inch rims. That gives the owner a clear choice between a traditional period-style bias-ply presentation and a radial-oriented setup that should still be checked against the car's actual wheels and clearances.
Bias-Ply to Radial Tire Conversion for the 1961 Holden FB
For the original 640-13 tire size, four radial-equivalent options are available. 175R13 is the 80-series metric radial equivalent, P175/75R13 is the 75-series P-metric alternative, P185/70R13 is the 70-series P-metric alternative, and 650R13 is the bias-look radial equivalent. Together, these options move from traditional metric radial sizing to lower-profile P-metric formats, with the bias-look radial aimed at a more vintage visual presentation. A 4-6 inch recommended rim-width range is associated with these equivalents, and wheel width, overall fit, and clearance should all be confirmed before changing setups.
Modern Radial Equivalents
175R13
Equivalent 80-series Metric Radial (640-13)
P175/75R13
Equivalent P-metric 75-series Radial (640-13)
P185/70R13
Equivalent P-metric 70-series Radial (640-13)
650R13
Bias-look Radial Equivalent (640-13)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (4-6 in) and load needs match your vehicle specifications.
Check fender clearance, steering clearance, and stance before installation.
Consider suspension condition and intended road use when choosing equivalents.
Important Fitment Notes
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1961 Holden FB Tires for Sale
Available product choice centers on 640-13, including a BFGoodrich Silvertown Classic Bias Ply option with a wide whitewall sidewall style. That makes the product grid especially useful for buyers focused on traditional bias-ply construction and restoration-oriented appearance.
The most common 1961 Holden FB tire questions center on choosing between 640-13 and 175R13, understanding radial equivalents, and checking wheel condition, appearance goals, and overall fit before the car goes back on the road.
Tire Size & Fitment
What tire size fits a 1961 Holden FB?
The 1961 Holden FB is associated with two primary tire sizes: 640-13 in bias-ply construction and 175R13 in radial construction. Both sizes use a 13-inch rim, so the decision is not about changing wheel diameter first but about choosing the tire format that matches the car's setup and the owner's goals.
A car kept in a traditional restoration style may stay with 640-13, while a car already set up for radial use may point toward 175R13. The most useful next step is to confirm the actual wheel width, check for any older modifications, and make sure the tire construction being considered suits the way the Holden will be driven.
What size rim does a 1961 Holden FB use?
The covered tire sizes for the 1961 Holden FB are built around a 13-inch rim diameter. That applies to both the 640-13 bias-ply size and the 175R13 radial size, which means the wheel diameter remains consistent even though the sizing systems and tire construction differ.
Rim diameter is only part of the fitment picture, especially on an older car. The wheel's actual width and condition still matter, and they become even more important when moving between bias-ply and radial constructions. It is wise to inspect the wheels for damage, corrosion, or prior replacement before choosing the final tire.
What does 640-13 mean on a 1961 Holden FB?
640-13 is a vintage numeric bias-ply tire size. The 640 refers to a nominal section width of about 6.40 inches, and the 13 indicates the rim diameter in inches. On a 1961 Holden FB, it represents the traditional bias-ply sizing style associated with cars of this period.
That size matters because it influences both the look of the car and the kind of replacement tire that makes sense. A buyer choosing 640-13 is usually preserving a more period-style presentation, while someone comparing it to radial alternatives should also confirm wheel width, clearance, and whether the Holden's suspension and alignment are ready for regular road use.
Bias-Ply & Radial Options
Is 640-13 a bias-ply or radial tire for the 1961 Holden FB?
640-13 is a bias-ply tire size for the 1961 Holden FB. It uses the older numeric sizing system common to many early 1960s vehicles, and it represents the traditional construction choice for owners who want a more vintage tire format and appearance on a 13-inch wheel.
That distinction matters because a bias-ply tire is not simply a styling choice; it affects how the car is set up and what alternatives make sense. An owner considering a switch away from 640-13 should confirm wheel width, inspect suspension and steering condition, and compare the intended use of the car before moving to a radial-equivalent size.
What radial tire sizes are equivalent to 640-13?
Radial equivalents for 640-13 include 175R13 as an 80-series metric radial, P175/75R13 as a 75-series P-metric radial, P185/70R13 as a 70-series P-metric radial, and 650R13 as a bias-look radial equivalent. These options all provide a radial-based comparison to the original bias-ply size rather than adding a different wheel diameter.
Each equivalent follows a different sizing convention, so the best choice depends on the wheel and the kind of appearance or road use the Holden is expected to handle. A 4-6 inch recommended rim-width range is associated with these equivalents, and actual section fit, clearance, and wheel condition should be checked before changing constructions.
Should I use bias-ply or radial tires on a 1961 Holden FB?
The answer depends on what matters most for the car. A 640-13 bias-ply tire keeps the Holden FB in a more traditional format, while 175R13 and the other radial equivalents offer a modern radial sizing path on the same 13-inch rim diameter. Both approaches can make sense when matched to the car's current setup.
Bias-ply tires usually appeal to owners prioritizing period-style appearance, while radial choices often come into consideration for broader road use. The safest approach is to base the decision on wheel compatibility, clearance, suspension condition, and how closely the car is being kept to an earlier-style presentation rather than choosing only by size code.
Choosing the Right Tire
What should I consider when choosing a 640-13 tire for a 1961 Holden FB?
Start with the basics: the tire must be the correct 640-13 size and it must suit the Holden's 13-inch wheel setup. From there, the main factors are bias-ply construction, the intended visual style, and whether the car is being kept close to a traditional period-style presentation or simply needs a roadworthy vintage-format replacement.
Product details matter once the size is confirmed. Compare sidewall treatment, rim-width specification, and serviceable load information, and think about how the tire will look on the car as much as how it will be used. A lightly driven collector car may lead to one choice, while a more regularly used Holden may push the buyer to consider radial alternatives separately.
What sidewall styles are available for 1961 Holden FB tires?
The available sidewall style shown for the 1961 Holden FB in 640-13 is a wide whitewall. That gives the car a distinctly vintage presentation and can be a major part of the overall look, especially for owners aiming for a more formal early-1960s appearance rather than a plain blackwall-style replacement.
Sidewall choice should be evaluated as part of the car's finished stance and restoration direction, not as a separate cosmetic detail. Whitewall width has a strong visual effect on an older sedan, so it helps to compare the tire against the wheel finish, ride height, and trim level of the car before committing to a final appearance-focused selection.
What brands offer tires for the 1961 Holden FB?
BFGoodrich is represented among the available 1961 Holden FB tire options in 640-13. That option appears in the Silvertown Classic Bias Ply series and is aimed at buyers who want a vintage-style bias-ply tire with a wide whitewall treatment rather than a modern-looking tire presentation.
Brand matters less than making sure the tire matches the Holden's actual setup and the owner's priorities. Once the size and construction path are confirmed, compare the tire series, sidewall appearance, rim-width suitability, and overall fitment goals. On an older vehicle, those details usually influence the final result more than brand name alone.
Restoration & Appearance
Which tire should I choose for a period-style 1961 Holden FB?
For a period-style presentation, 640-13 is the natural starting point because it is the vintage numeric bias-ply size associated with the 1961 Holden FB. It keeps the car in an earlier tire format and supports the kind of visual character many restoration-minded owners want from an early-1960s Holden.
The final choice still depends on how strictly originality is being pursued. A buyer focused on appearance can start with the correct size and construction style, then compare sidewall treatment and overall stance. If exact historical authenticity matters beyond general period style, marque references and vehicle-specific restoration documentation are worth checking before selecting the final tire.
How does tire construction affect the appearance of a restored 1961 Holden FB?
Tire construction changes more than ride feel on a restored 1961 Holden FB; it also changes the car's visual language. A 640-13 bias-ply keeps the Holden in a traditional early-1960s format, while a 175R13 or other radial equivalent introduces a more modern sizing convention even though the rim diameter remains 13 inches.
That difference is especially noticeable when the goal is a restoration-oriented finish. A wide whitewall bias-ply can reinforce a classic sedan look, while a radial may suit an owner who wants a subtler blend of vintage style and modern tire format. Matching the tire to the car's trim, stance, and restoration intent usually produces the most convincing result.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1961 Holden FB?
Yes, modifications can change tire fitment on a 1961 Holden FB even when the original wheel diameter stays at 13 inches. Aftermarket wheels, altered wheel width, suspension changes, ride-height adjustments, or bodywork repairs can all affect how a 640-13 bias-ply or 175R13 radial sits in the wheel opening and clears surrounding components.
An older car should always be checked as it exists now, not simply as it would have left the factory decades ago. Measure the wheels, inspect steering and suspension travel, and look for signs of rubbing or limited clearance. Those checks become even more important when moving from bias-ply construction to a radial-equivalent setup.
What should I inspect before driving a 1961 Holden FB on new tires?
Before road use, inspect the wheels for damage or corrosion, verify that the tire size matches the wheel diameter, and check that the tires are seated properly and holding air. It also makes sense to look over the steering, suspension, and brake condition on a 1961 Holden FB, especially if the car has spent long periods in storage.
A new set of tires cannot compensate for aging mechanical parts or poor wheel condition. Check for adequate clearance at full steering lock, confirm there is no contact with fenders or suspension parts, and make sure the car tracks properly once driven. On a collector vehicle, a cautious shakedown drive is a smart first step.
How should 640-13 tires on a collector 1961 Holden FB be maintained?
640-13 tires on a collector 1961 Holden FB should be maintained with regular pressure checks, visual inspection, and attention to age-related condition. Look for sidewall cracking, cuts, bulges, uneven wear, or signs of air loss, and keep the tires clean and stored away from prolonged heat, direct sunlight, and ozone-producing equipment whenever possible.
Collector cars often accumulate little mileage, which makes condition at least as important as tread depth. The Holden should be inspected before each driving season and again before any longer outing. Rotating only matters when the tire setup allows it, but wheel alignment, proper inflation, and clean dry storage all help preserve an older bias-ply tire.